Composition shingle



April 29, 1930.

N. P. HARSHBERGER T AL COMPOSITION SHINGDE Filed April 19 1926 //v l/EN TORS r .r e M W m h A P. r Ccu Apr. as, was;

eras @IFFHQCEE NORMAN 1?. HARSI IBERGEE, 0F PASADENA CALIFORNIA, AND RUSSELL P. HA RSHP- BERGER, 0F SOUTH BEND, INDIANAtSAID RUSSELL P. EARS T0 SAID NORMAN R HARSERGER COMPOSITION SHINGLE Application an. April 19,

an eflicient and economical manner shingles of this nature.

Of the accompanying drawings Fig. 1 is a plan view of a sheet of shingle material showing how the individual strip shingles are cut from the sheet; Fig. 2 is a plan view of a portion of a plurality. of shingles embodying the features of our invention as they appear when laid on a roof; and Fig. 3 is an enlarged plan view of an individual unit.

The shingle which Wev have invented may be called an octagon strip shingle, as'the figures which are produced by layin the shingles on the roof are octagon shaped, although the shape of the shingles and particularly the figures produced maybe varied more or less without departing from the spirit of my invention. In this particular instance, howi ever, the shapes produced are those of equiangular and equilateral octagons. As is indicated by Fig. 1, the method by which these shingles are cut out from the sheets consists in cutting zigzag lines through the central portion of the sheet, the lines forming three sides of the octagon portions of the figures when laid. The pro ections in oneshingle are formed by cutting corresponding recesses in the adjacent shingle, these recesses and projections comprising three sides of the octagon. The sheet is then cut transversely to form the individual units, the transverse cuts also being zigzag or broken lines, as indicated.

lhe shingle comprises a body portion 5 having a straight edge 6, and stralght ends 7 and 8, preferably at right angles to the edge 6, andon the opposite edge having octagon portions 9 and 10 projecting from the shingle. There is also on this edge a projection 11 which is one-half the length of the projec ti n 9 and 10, n as one-ha f of a we:

ERGER ASSIGNQB 1926. Serial No. items.

gon side 12 and 13 at each of its ends, these sides being parallel and forming with anadjacent edge an angle of 135. A slot or slit 141 is formed in the projection 11 at-the inner corner thereof, the slot being at an angle of substantially 90 with the adjacent edge 12. At the other end of the shingle a tongue 15 is formed and between it and the body of the shingle isa slit 16. The units are arranged to be formed in strips, the adjacent ends being locked together by means of the tongues 15, and the slots 1 1 and 16. As indicated, the tongue 15 passes under the lower edge of the adjacent shingle with the slits coacting and the inner ends of the slits coinciding. When thus laid the projections of one shingle 9 covers the projection 11 of the adjacent shingle and a continuous row of interlocked units presents a series of projections similar in shape to 9 and 10.

When the strips thus formed are laid on the roof one strip may lap as much as may be desired on the underlying strip. We prefer to have the distance between the outer end appearance on the roof of an equilateral octagon formed by the edges of the registering projection and recesses." When thusformed avery pleasing appearance is roof and the ends of the shing es lap sufliciently to prevent any leakage at the ends, and by inserting nails at the points 20 and 21 the shingles are firmly fastened to the roof, no nail heads are exposed, and the possibility of the exposed portions warping upwardly is substantially eliminated. As will be seen the nails 20 are covered by the proj ections 9 of the adj acent-overlying shingles.

We claim as our invention:

1. A combination strip shingle comprising a plurality of units placed'in a row with their respective adjacent ends lapping,'and means for locking together such respective ends, each of said means comprising a tongue projecting longitudinally from one of the adjacent ends, said end having a slit part way iven to the across the inner end of said tongue, the other adjacent end having a slit extending inwardly from the side edge and spaced a ma-. terial distance from the end, but slanting towards said end, said tongue being positioned under said side edge with the slits interlocking, one edge of the combination shingle comprising a series of projections ofsinw ilar shape extending uniformly all along the edge, each of said slanting slits extending inwardly from one of said projections inter mediate of its length.

2. A combination strip shingle comprising a plurality of unitsplaced in a row with their respective adjacent ends lapping, and means for locking together such respective ends, each of said means comprising a tongue projecting longitudinally from one of the adjacent ends, said end having a slit part way acloss'the inner end of said-tongue, the other adjacent end having a slit extending inwardly from the side edge and spaced a material distance from the end, said tongue being positioned under said side edge with the slits interlocking, one edge of the'combination shingle having a series of projections of similar shape extending uniformly all along the edge, the two interlocking slitsbeing positioned inoverlapping projections.

3. Strip shingles comprising a plurality of units placed in a row with their adjacent ends lapping, the edge of said units which is adapted to be exposed having a plurality of projections of similar shape, each projection adjacent the lapping ends of two units being formed by a complete projection of one unit having locking means-in connection there-- with and by a partial projection of the other unit having locking means which cooperates with the locking means of the complete pro jection, said partial projection having its isner side out to register with the outer side of the complete projection with which it interlocks.

4. Strip shingles comprising a plurality of u'nits placed in a row with their adjacent ends lapping, the edge of said units which is adapted to be exposed having a plurality of projections of similar shape, each projection adjacent the lapping ends of two units being formed by a projection of one unit having locking means in connection therewith and by a projection of another unit having looking means which cooperates-with the locking means of the other projection, said two projections having registering sides.

In testimony whereof we hereunto set our hands. NORMAN P. HARSHBERGER. RUSSELL P. HARSHBERGER 

